A small booster pump

Abstract

This utility model discloses a small booster pump, which is equipped with two water impellers that rotate synchronously in opposite directions, thereby accelerating and pressurizing the water flow. In addition, there is a gap between the two water impellers and they do not contact each other. There is also a gap between the water impellers and the pump body, so they do not contact each other. This design makes the booster pump operate with almost no mechanical wear and noise, thereby improving the user experience and service life. In this small booster pump, torque is transmitted through a driving gear and a driven gear to achieve synchronous control of the two water impellers.

Description

Technical Field

[0001] This utility model belongs to the field of household appliance technology, specifically relating to a small booster pump used in water purification equipment or dishwashers. Background Technology

[0002] Existing household or commercial water purification equipment suffers from drawbacks such as low water flow rate, high noise, and short lifespan of diaphragm booster pumps; household dishwashers also suffer from low output water pressure, resulting in insufficient rinsing power; traditional small booster pumps cannot effectively solve these problems.

[0003] Based on this, the inventors have conducted in-depth research on traditional small booster pumps, aiming to design a completely new small booster pump by modifying its structural form, thereby solving the above-mentioned problems. Utility Model Content

[0004] To overcome the above problems, the inventors conducted in-depth research and designed a small booster pump. This small booster pump has two water impellers that rotate synchronously in opposite directions, which can accelerate and pressurize the water flow. In addition, there is a gap between the two water impellers, so they do not contact each other. There is also a gap between the water impellers and the pump body, so they do not contact each other. This design makes the booster pump almost free of mechanical wear and noise during operation, thereby improving the user experience and service life. In this small booster pump, torque is transmitted through a driving gear and a driven gear to achieve synchronous control of the two water impellers, thus completing this utility model.

[0005] Specifically, the purpose of this utility model is to provide a small booster pump, which includes a motor 1 and a pump body 3, and a driving water wheel 8 and a driven water wheel 7 are provided in the pump body 3.

[0006] The motor 1 drives the active water turbine 8 and the driven water turbine 7 to rotate synchronously in opposite directions, thereby accelerating and pressurizing the water flow.

[0007] The shapes of the active water turbine 8 and the driven water turbine 7 allow the two water turbines to mesh with each other.

[0008] There is a predetermined gap between the active water turbine 8 and the driven water turbine 7, and the active water turbine 8 and the driven water turbine 7 do not directly contact each other.

[0009] The minimum gap between the driving turbine 8 and the driven turbine 7 is greater than 0.1 mm.

[0010] Among them, on the inner wall of the pump body 3, there are arc-shaped inserts 6 installed on the outer side of the active water impeller 8 and the outer side of the driven water impeller 7. The inserts 6 cooperate with the water impellers to form a water cavity through which water flows.

[0011] Among them, the minimum gap between the active water turbine 8 and the inner wall of the pump body 3 and / or the insert 6 is greater than 0.1 mm;

[0012] The minimum clearance between the driven impeller 7 and the inner wall of the pump body 3 and / or the insert 6 is greater than 0.1 mm.

[0013] Among them, a drive shaft 9 is provided on the motor 1, and a drive gear 4 and a drive water turbine 8 are provided on the drive shaft 9;

[0014] The small booster pump also includes a driven gear 10 that meshes with the driving gear 4;

[0015] A driven shaft 5 is provided on the driven gear 10, and the driven shaft 5 rotates synchronously with the driven gear 10;

[0016] The driven waterwheel 7 is mounted on the driven shaft 5, so that the driven waterwheel 7 can rotate synchronously and in the opposite direction to the driving waterwheel 8.

[0017] The number of blades 11 on both the driving turbine 8 and the driven turbine 7 is the same, ranging from 1 to 8.

[0018] The beneficial effects of this utility model include:

[0019] (1) The small booster pump provided by this utility model is equipped with a transmission gear, which can control the active water wheel and the driven water wheel to rotate synchronously in opposite directions, thereby accelerating and pressurizing the water flow.

[0020] (2) The small booster pump provided by this utility model has a gap between its two water impellers, so they do not contact each other; there is also a gap between the water impellers and the pump body, so they do not contact each other. This design makes the booster pump almost free of mechanical wear and noise during operation, thereby improving user experience and service life.

[0021] (3) According to the small booster pump provided by this utility model, an arc-shaped insert is provided on the inner wall of the pump body. The insert can be made of a material that is dimensionally stable, not easily corroded by water, and has good rigidity. Correspondingly, the material performance requirements of the pump body can be lower, thereby reducing costs while ensuring working quality. Attached Figure Description

[0022] Figure 1 An exploded view of the miniature booster pump of this application is shown;

[0023] Figure 2 The diagram shows cross-sectional views of the small booster pump of this application at the driving and driven water turbines;

[0024] Figure 3 This paper shows a cross-sectional view of the miniature booster pump of this application at the driving gear and driven gear;

[0025] Figure 4 The diagram shows a cross-sectional view of the miniature booster pump of this application at the drive gear and driven gear.

[0026] Explanation of reference numerals in the attached figures

[0027] 1-Motor

[0028] 2-Top Cover

[0029] 3-Pump body

[0030] 4-Drive gear

[0031] 5-Driven shaft

[0032] 6-Inlays

[0033] 7-Driven turbine

[0034] 8-Active Water Turbine

[0035] 9-Drive shaft

[0036] 10-Driven gear

[0037] 11-blade Detailed Implementation

[0038] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Through these descriptions, the features and advantages of the present invention will become clearer and more apparent.

[0039] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments. Although various aspects of embodiments are shown in the accompanying drawings, the drawings are not necessarily drawn to scale unless specifically indicated otherwise.

[0040] This utility model provides a small booster pump, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the booster pump includes a motor 1 and a pump body 3, with a driving impeller 8 and a driven impeller 7 installed in the pump body 3; Figure 1 As shown, the pump body 3 includes a housing located on the side and a top cover 2 located at the end;

[0041] The active water turbine 8 and the driven water turbine 7 are driven by motor 1 to rotate synchronously in opposite directions, thereby accelerating and pressurizing the water flow. An inlet pipe and an outlet pipe are provided on the side of the pump body 3, and the pressurized water flows out through the outlet pipe. Preferably, the water pressure difference before and after passing through the booster pump can reach more than 0.5 MPa.

[0042] Preferably, the shapes of the driving waterwheel 8 and the driven waterwheel 7 are such that the two waterwheels can mesh with each other.

[0043] Preferably, a predetermined gap is left between the active water turbine 8 and the driven water turbine 7, and the active water turbine 8 and the driven water turbine 7 do not directly contact each other; such a design can prevent mechanical wear between the two water turbines and prevent noise from being generated due to friction, thereby improving service life and reducing noise pollution.

[0044] Furthermore, the minimum gap between the active water turbine 8 and the driven water turbine 7 is greater than 0.1 mm, preferably 0.2 mm. The inventors have found that when this size is set to 0.2 mm, the overall noise is the lowest and the pressurization effect is the most significant.

[0045] In a preferred embodiment, an arc-shaped insert 6 is installed on the inner wall of the pump body 3, on the outer side of both the driving impeller 8 and the driven impeller 7. The insert 6 cooperates with the impellers to form a water cavity through which water flows. In this application, the pump body can be made of plastic, and the insert 6 can be made of a dimensionally stable material that is not easily corroded by water and has good rigidity. By forming a water cavity that cooperates with the two impellers through the insert, the manufacturing cost of the pump body is reduced while ensuring the size of the water cavity. The pump body 3 can also be directly injection molded from a dimensionally stable rigid plastic part.

[0046] Preferably, the minimum gap between the active water turbine 8 and the inner wall of the pump body 3 and / or the insert 6 is 0.1 mm or more, and preferably 0.2 mm;

[0047] The minimum gap between the driven impeller 7 and the inner wall of the pump body 3 and / or the insert 6 is 0.1 mm or more, preferably 0.2 mm. The inventors have found that when the gap is set to 0.2 mm, the overall noise is minimized and the pressurization effect is most significant.

[0048] In a preferred embodiment, a drive shaft 9 is provided on the motor 1, and a drive gear 4 and a drive water turbine 8 are provided on the drive shaft 9; the drive gear 4 and the drive water turbine 8 rotate synchronously with the drive shaft 9.

[0049] The small booster pump also includes a driven gear 10 that meshes with the driving gear 4;

[0050] A driven shaft 5 is provided on the driven gear 10, and the driven shaft 5 rotates synchronously with the driven gear 10;

[0051] The driven waterwheel 7 is mounted on the driven shaft 5, so that the driven waterwheel 7 can rotate synchronously and in the opposite direction to the driving waterwheel 8.

[0052] The number of blades 11 on the active turbine 8 and the driven turbine 7 is the same. The active turbine 8 and the driven turbine 7 are not limited to three blades. They can have one or more blades, ranging from one to eight, depending on the usage environment and specific requirements.

[0053] The present invention has been described above with reference to preferred embodiments; however, these embodiments are merely exemplary and serve only an illustrative purpose. Based on this, various substitutions and improvements can be made to the present invention, all of which fall within the protection scope of the present invention.

Claims

1. A small booster pump characterized by, The booster pump includes a motor (1) and a pump body (3), and a driving water wheel (8) and a driven water wheel (7) are installed in the pump body (3). The motor (1) drives the active water turbine (8) and the driven water turbine (7) to rotate synchronously and in opposite directions, thereby accelerating and pressurizing the water flow. The minimum clearance between the driving turbine (8) and the driven turbine (7) is greater than 0.1 mm; On the inner wall of the pump body (3), there are arc-shaped inserts (6) installed on the outer side of the active water impeller (8) and the outer side of the driven water impeller (7). The inserts (6) cooperate with the water impeller to form a water cavity through which water flows. The minimum clearance between the active water turbine (8) and the inner wall of the pump body (3) and / or the insert (6) is greater than 0.1 mm; The minimum clearance between the driven impeller (7) and the inner wall of the pump body (3) and / or the insert (6) is greater than 0.1 mm.

2. The small booster pump according to claim 1, characterized in that, The shapes of the driving waterwheel (8) and the driven waterwheel (7) enable the two waterwheels to mesh with each other.

3. The small booster pump according to claim 2, characterized in that, The predetermined gap between the active water turbine (8) and the driven water turbine (7) means that the active water turbine (8) and the driven water turbine (7) do not directly contact each other.

4. The small booster pump according to claim 1, characterized in that, A drive shaft (9) is provided on the motor (1), and a drive gear (4) and a drive water turbine (8) are provided on the drive shaft (9). The small booster pump also includes a driven gear (10) that meshes with the driving gear (4). A driven shaft (5) is provided on the driven gear (10), and the driven shaft (5) rotates synchronously with the driven gear (10); The driven waterwheel (7) is mounted on the driven shaft (5), thereby enabling the driven waterwheel (7) to rotate synchronously and in the opposite direction to the driving waterwheel (8).

5. The small booster pump according to claim 2, characterized in that, The number of blades (11) on the active turbine (8) and the driven turbine (7) is the same, ranging from 1 to 8.

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